New signage is to be introduced at Wimbledon Station to make the Oyster interchange buttons more obvious.

The announcement follows figures showing Oyster card users at Wimbledon were overcharged last year by £825,000.

Wimbledon is eighth on a list of the top 10 stations in London where the most passengers were mis-charged the maximum single fare of £7.40 in 2010.

Caroline Pidgeon, the Liberal Democrat London Assembly Group leader, told the Assembly that the station is "very confusing" for Oyster passengers to work out where to 'touch in and out' as they interchange between the trams and the trains.

She asked Mayor Boris Johnson: "Will you instruct TfL to work with South West Trains to try and make it more straight - forward for passengers using this station?"

He replied: "TfL is already planning to improve the signage around the two yellow Oyster readers on the Tramlink platform at Wimbledon to make it clearer which one is for tram passengers and which one is for passengers interchanging onto National Rail.

"In addition, TfL has been working with South West Trains and the London Borough of Merton to improve interchange signage and is supporting the borough-led forecourt improvement scheme, which will make journeys from the station more straight-forward."

Have you been over-charged at Wimbledon Station? Why not comment on our forum?